The school is a Chinese teacher who masters the English language perfectly.A. searchingB.

问题补充：

The school is a Chinese teacher who masters the English language perfectly.

A. searching

B. in the search of

C. in search

D. in search of

答案：

A. searching

B. in the search of

C. in search

(答案→)D. in search of

解析：in search of 是固定搭配，表示“寻找,找出”。